Apparatus for making french seams



Nov. 9, 1943. c. SEAMAN 7 2,334,129

APPARATUS FOR MAKING FRENCH SEAMS Filed Jan. 17, 1942 2 Sheets-Sheet l INVENTOR. CHARLES SEAMAN BY /&W

Nov. 9, 1943.

c; S EAMAN APPARATUS FOR MAKING FRENCH SEAMS 2 Sheets-Sheet 2 Filed Jan. 17, 1942 INVENTOR. CHARL r ES SEAMAN A TTOR/VEX Patented Nov. 9,1943

4 UNITED STATES men -em ge making a French seam. More particulanly,.:this invention relates to a sewing machine, andspairticularly .to sanrattachment for 'a sewing machine, for producinga "French seam. -v '1 l The nature and objects of the invention will become clear from :the following speoificeition;

appended claims, .ancl accompanying. drawings forming a pert of .this' specificationiand wherein: Figure lisa top plan .view of :a sewingma'chine (-the sewingmachine head being omitted for clarity) embodying-the principleszof theinvention;

Figure -2 is e side elevationofthesewingmar chine shown in Figure 1, with the sewin'g ma,- chine headlpartly broken 'away; Figure 3 isa'front elevationof thesewing mechine shown in Figure l, with the sewing machine heed broken away;

Figure A is a perspective vviewof the folder aln presser footof the attachment; 1

Figure -5is a perspective View illustrating-the material at the various stages of the operaition as it is-fed through the sewing machine;

Figure 6 is an end View of the folder and shows the position of the material with respectthere- 1 r Figure? is a sectiontekenfonthe line L-l "of Figure 4; Fi-gure Sis asection taken on the line -8-=8-0f Figure l;

Figure 9 is a; sectionhf the material after it has-beenstitched;

Figure 10 1s an 1 end'zview'of the material shown in Figure 8 after it -hes 1 been unfolded "or opened upyand l r 1 Figure 1.1 vis an end View of their-"rel material. In accordance-withthenprinciples :of the instant invention, the two-materials, which are :to be joined by a, French seam,-a,restitched together on the right side in the usual manner, and then trimmed closely. The =thus-seamed material is o erat o eor jt nu us with th ms the standa d zliws ins wit is jliniie 'ts ishgm 1l 9 notne e sery.

: s the wo niete iels have been 1.1'Qinegi, ltpe her by a seam lend th s am ls osel' trimmed esh sviouslyim ntione ;it

7' gh fol e Wishe te y keeple n q i ld it issesmsd mate ie :ebeu the seam therei so th t. $1 13 slis s Pf seam willb dise s s xh twssnee um k ly and. alower plvfimaxmd-lqvth ma ris se med the se m- {Ihe s li v i sm nie wi ness-9x th .ss-Wine ma hine s that at -.r 1ll Qrssset w th? fpideqmaterial.inprq e posi iqntens rsseivefl byshe pessse is t nd st t hes; lqy ths nssfl as it is ed 1; cusltth znethrthnee The; r sss pqt is prsvidesnwi h 17 s which is :sslem es to-engees th sis-pr se v see/ eamloa i sio 'dsfl materieLe maint n th Semein inifimn he erallv spasm reletisns ii with respe it! Jill? nether travel o the u-nesdlsie -,t e ife dsfirmel s m1 is irjed throu h th ma hi e; whe eb then turnedor folded aboutthe seam-so that the:

raw edges are disposed hetweenithe' upper and lower plies and thereby concealed. In thisncondition,.ithe material is stitched on the wrongssi'd'e, the stitchespassingithrough theuupperend-lower plies, wherebyathze 'raw edees a-reeconcealed, and; when thelseatmed materialiis uniol'ded :or opened up, the stitching zisuconceailed. i The joining :of the 1 two materials on 113118 might side may he reflected ii'n ea-nyv-ofxthe Walla-known standard sewing machines sand the itrimming moi the seammay 1be; =efi =ec.t.ed-in-anyssuitarble manner. In the :preferred embodiment :;of :the invention, th :ttrinm in eofv thezseemis-zeff-ecteduw :pmvid-j 3 a y-mounted iwlith res ec t thsipresse opt me b e il s t fls ilsdxnos .e lon i udinall (q es ersslvw ith es t to the messe i bb h plsi i sheep nd norm ,l tspds dln esse soot substitute 'inplacethere of" :lhe. att hme ion ,nia b t ac hi ew dsm' n y ii 1. v orindee'd chafingmgthe standa, sewing rngghine;

Likewise; the attei'chinent ine yjherendered-inef- I fective thesimple opere tion previously gle scribed so=-thavt-"the standard mechine mayhe forusual sewing operations.

"-I-n order to more *ful-y explain a gpli'ca ntFs in ventien, referencewill nowhe hed to' the-drawings showing anllustrative embodiment of -arpniicenti's L invention hau -wherein theyrefe'renee Q-numeral U13, designates a standerwsewinemaohine headearried one-work support M usual manner. The sewing machine head if] is provided with a needle bar I d which carries a needle I6. The needle bar It is vertically reciprocated in the usual manner. The head it) is also provided with the usual spring-pressed presser foot bar i8 on which the presser foot 20, hereinafter more fully explained, is mounted. The presser foot bar i8 is of the usual type and may be elevated and lowered by proper manipulation of the hand lever 22. The presser foot 25 cooperates with feed dogs 2 which pass through slots 26 in a cover plate 28 provided in the work suport [2. The feed dogs 24 are actuated by a conventional four-motion feed-actuating mechanism (not shown). Except for the specific construction of the presser foot 28 hereinafter more fullyexplained, the aforementioned details and features of construction are part of a standard sewing machine. i

The presser foot 20 is provided at its upper end with 'achanneled lug 3il,'which is adapted to receive'the presser foot bar It and be secured in position thereon by a set screw 32.- At the opposite end, the presser foot 20 is bifurcated to produce toes 34, and 35 separated by a slot 38 through which the needle 16 passes.

To properly maintain the material in uniform laterally spaced relationship with respect to the needle so that during the stitching operation a uniform line of stitching (with respect to at least the edge of the material) is secured, the presser foot 20 is provided with a guide, generally designated by the reference numeral 4i]. As shown in Figures 4 and 8,-the' guide All comprises a spring arm 4|, which is secured at its upper end tothe presser foot 20 in any suitable manner," as, for example, "by soldering. The spring arm BI is provided at the opposite end with a substantially inverted J-shaped member; which is adapted to be positioned on the toe 36. As shown in Figures 4 and 8, thelong arm 42 of the inverted J-shaped member is positioned adjacent the right side (see Figure 3) of the toe 35 so that it will continuously engage, and thereby uniformly maintain, the edge of the material passing under the presser'foot so that a uniform line of stitch- The folder 48 is secured to one end of an arm 56, as by soldering, the other end of the arm 56 being adjustably (rotatably and slidably) mounted and fastened in a longitudinal bore ina holder 58 By moving the arm 56 1 e in the holder 58 in the desired longitudinal (11- by means of a set screw 68.

rection and securing the same in the desired adjusted position, the folder 48 may beadjusted longitudinally with respect to the presser foot 20,

the set screw 60 serving to secure the arm 56 top of the toe 35. In the "preferred form, the I inverted 'J-shaped member isofa size so that it will snugly fiton to the toe 56, whereby the leg 42 will be secured'in position and not move during its operation.

As shown in Figures 1, 2, 3 and 4, a folder 48 is V shown in Figure 7. Intermediate the entrance end and the exit' end, the folder 48 is so constructed as to gradually'assume theexit crosssection, The diameter of the folder 43 at its entrance end and the altitude of the triangular cross section at the exit end may be of any. suitabledimensions whereby the folder is adapted to 1 about the pivot 62.

in inoperative position,-there is provided a springspect to the presser foot'Zii. In the'preferred form shown, the folder i8 is positioned at an angle to the horizontal plane as shown and the exit end I of the folder 48 is positioned in close proximity to the presser foot 20, though, if desired, the folder 48 may be positioned a greater or lesser spaced distance from the presser foot. I

The holder 58 is pivotally mounted adjacent its rear end on a screw 62 carried by a block on a bracket 66, the bracket 66 being secured by means;

of screws 63 to the work support. [2 at the rear of the machine opposite to the operator. 7 The hold er 58 is provided with a slot 70 which cooperates with a screw 12 and whereby the holder '58 may be securely locked in'position. When it is desired to remove the folder 48 and render it inef-q fective so that the machine may be used for normal sewing, the screwrl2 is loosened and the holder58 moved in a direction, clockwise in Figure 1, To maintain the holder 58 '14, one. end of which is secured in any suitable manner, as by screws 16, to theblock '64. other end of the spring 14 is free and engages the rear end '18 of the holder. 58 is moved into inoperative position, .as previously mentioned, the free end ofthe springldwill engage the end 78;of the holder and maintain it in the open position. v The arm 56 is of 'a design (curved) whereby upon the rotation thereof about its longitudinal axis, the folder 48, may be positioned vertically, and preferably angularly, with respect to the presser foot 20. mit quick, fine horizontal adjustment of the folder 48 with respect to the presser foot 20. In the illustrative form shown, the bracket'sfi is provided with an upstanding lug 8B which is provided adjacent the upper extremity thereof with a man! I ually-controlled screw 82 which is adapted to bear on the holder 58, asat 84. Byproper manipulation of thescrew 82, the holder 58 may be given an adjustment in atransverse direction withre-l spect tothe presser foot. i

It is to be noted that the and the, bracket 66 are so mounted thatnone of theseelements will interfere with the work as it I passes through themachine. 1 t

In operation, two pieces of fabric 54-are seamed thereof and trimmed to provide the raw edges52. The thus-seamed material is then introduced into the entrance end of the folder 48 with the raw' edges 52 and the line of stitching 86 in the interior thereof, asshown in Figure 5; As the material is fed through the machine by the feed dogs'Zd and the presser 7 foot 20 cooperating therewith, thematerial assumes the position shown in Figure I :7,- and, when the material leaves theQfolder 48,- it is folded about the seam so'that the'rawedges'il f The.

Thus, when the holder I j Means are also provided to per- 5 folder 4a, where together by a line of stitching as on the right side ing designated bythe reference numeralQZ.

plies Et anol 8 9 are then opened up, as shown in Figure 10, and finally the seamed material is pressed to produce the art-icleshow-n in Figure 1 1.

If desired, the attachment may be mounted on' asa tiee and the stitching 8t will be disposed between an upper ply '88- and a tower ply 90 formedbythe material 54, and as shown in Figured In'this. condition, the-folded material is fed and received beneath thepresser root, the exposed edge of the folded material engaging the inner surface of the guiding member of the J -shaped member;

As the material in this condition is fed through" the machi-ne,-i t passes through the path ofthe needle I t and is stitched thereby; It will be noted that the needle it penetrates bothplies 88 and Wei the material in close spaced proximityto the extremities of the raw edges 52,- whereby the raw edges 52 and the stitching 86 are concealed between the piles $8 and '90. r r The stitchingo-peration just described produces thel-ineof stitch- The a standard sewing machine head whichisalso provided with a knife for trimming the seam produced therein. When such a machine is used duringthe first operation, a normal standard presserfoot isused in place and stead of thepresser' foot 2!] hereinbeforedescribed, and the folderilli is moved into-inoperative position as The folder '48 is then, by proper movement which may be secured to any standard sewing machine without inanyway mutilating or damaging said machine, and that when it 'is-not :de-

sired for useit may be wholly removed or it may be rendered inoperativer The sewing machine attachment is so designed and constructed that it will produce a uniform lineof stitching equally distant from the edge of thejproduct, thereby resulting in a French seam of marked beauty and uniformity. r a g Though in the specific embodiment described herein the folder 48 is mounted in the holder 58 carriedby the bracket secured adjacent to the back of the machine, the invention-is not restricted thereto nor to the specific-mountingof the folder it, since it will be obvious to a person skilled in :the art that the folder 48*m'ay be adjustably positioned on another part of the machine and indeed on the machine head. .Likewise, theinvention is not restricted to the specific construction of the J -shaped member of 1 the presser foot 20-, since it will be obvious tov a person skilled in the art that another, guiding member having the function of the member 42 may be used, i y I a y Since it is obvious that various changes and modifications may be made in the above description without departing fromthe nature or spirit thereof, this invention is not restricted thereto except as set forth in the appended claims.

I-claim: i. A sewingmachine comprising a, reciprocatingneedle, feed dogs; a slotted-presserfoot coopcrating with said feed dogs, a folder in advance will be disposed between an upper and lower ply formed by the materials joined by-the seam and present the thus-folded material to the presser foot and-for {stitchingby the needle through at leastthe' upper and lower plies, said folder having a slot extending longitudinally thereof to receive the raw edges andthe line of stitching of a seamed material, the upperand lower plies extending outwardly from the slot being positioned over and under the folder respectively, said folder having its exit end substantial-1y triangular cross-section, and a substantially inverted J- shaped member disposed on one toe of said presser foot,t'he 'longleg of said inverted J-shaped member being positioned to engagethe exposed edge ofthe folded material passing beneath said toe and. maintain the same in uniform laterally spaced relationship with respect to the path of travel oftheneed'le whereby stitching of the folded material at a uniform distancefrom the edge is secured as the material is fed through the path of theneedle of the machine, the short leg cf'said invertedfJ-shaped member being posi-' tioned inthe's'lot of the presser foot andengagjingf theinner surface" of the toe on which said verted J-shaped member is positioned.

"2 A sewing machine comprising. a reciprocat ing needle, feed dogs, a slotted presser. foot coopcrating withsaid feed dogs, a folder in advance of said presser foot to fold a seamed material about the seam therein so that the stitching and the raw edges of the material adjacent the seam willbe disposed'between an upper and lower ply formed by thematerials joined by the seam and present the thus-folded material to the presser foot and for stitching by the needle throughat least the upper and lower plies, said folderlhavingla slot extending longitudinally thereof toreceive the raw edges and the line of stitching of a seamed material, the upper and lower plies extending outwardly from the slot being positioned posed on one toe of said presser foot, the long leg I of said inverted J-shaped member being" positioned to engage the exposed edge of the folded material passing beneathsaid toe and maintain the same in uniform laterally spaced relationship with respect to the path of travel of the needle;

whereby stitching'of the folded material at a uniform distance from the edge is secured as the material is'fed throughthe path of the needle of the machine.

1 3. A sewing machine comprising,

of said presser footto fold a seamed material about the seam therein so thatthe stitching and the rawedges of the material adjacent the seam will be disposed between an upper and lower ply formed by the materials joined by the seam and present the thus-folded material to the presser foot and for stitching by the needle through .at least the upper and lower plies, said folder having a slot extending longitudinally thereof to receive the raw edgesandthe line of stitching oraseamed material, the upper and lower plies extending outwardly from the slot being positioned over and underthe folder respectively said folder about the sean 'there'in so that the stitching and the raw edgesof the material adjacent the seam a reciprocat- I ingv needle, feed dogs, a slotted presser foot coopcrating with said feed dogs, a folder in advance;

having its exit end substantially triangular incross-section, means to adjust the position of the folder with respect to said presser foot, and a substantially inverted J -shaped member disposed on one toe of said presserfoot, the long leg of said inverted J -shaped member being positioned to engage the exposed edge of the folded material passing beneath said toe and maintain the same in uniform laterally spaced relationship with retioned.

4. A sewing machine comprising a reciprocating needle, feed dogs, a presser foot cooperating with said feed dogs, a bracket secured to the work support of said machine, a holder pivotally mounted on said bracket, an arm rotatably and slidably positioned in said holder, means to secure said arm in adjusted position in said holdmg needle, feed dogs, a slotted presser foot coop-.5;

er,means carried by said arm to fold aseamed material longitudinally about the seam therein so that the stitching and raw edges of the m'aterial adjacent the seam will be disposed between an upper and lower ply formed by the materials joined bythe seam, said arm being adapted to dispose' the folding means in operative position in advance of said presser foot, means for producing a small horizontal movement of said holder work support 'of' said machine, a holder pivotally mounted on said bracket, a curved arm rotatably and slidably positioned in said holder, means to 'securesaid arm in adjusted position in said holder, a folder carried by said arm to fold a seamed material longitudinally about the seam therein so that the stitching and raw edges of the material adjacent the seam will be disposed between an upper and lower ply formed by the materials joined by the seam, said folder having a'slot extending longitudinally thereof to receive the raw edges and the line of stitching of a seamed material, the upper and lower plies extending. outwardly from the slot being positioned over and under the folder respectively, saidfolder having its exit end substantially triangular in cross-section, said arm being adapted to dispose the-folding means in operative position in advance of said presser foot, and means on the presser foot to engage the exposed edge of the folded'material passing beneath said presser foot and maintain the same in uniform laterally. spaced relationship with respect to the path of travel of the needle whereby stitching of the folded material at a uniform distance from the edge is secured as the material is fed through the path of the needle of the machine.

6. A sewing-machine comprising a reciprocating needle, feed dogs,a slotted presser foot coopcrating with said feed doa a bracket secured;

to 'thework support of said machine, a holder pivotally mounted 'onsaid bracket,-an arm rotat ably and slidably positionedin said holder, means; to'secure said arm in adjusted position in said: 1

holder, means carried by said arm to fold a} seamed material longitudinally about the seam; therein so that the stitching and raw edges, oi; the material adjacent the seam will bejdisposed:

between an ,upperand lower plyformediby the materials joined by the seam, said, arm. being,

adapted to dispose the folding means in operas-1 tive position in advance of said presser foot,v and? a substantially inverted J-shaped memberdis-;

; posed on one toe of said presser foot,'the longs' v leg of said inverted J-shaped member beingw positioned to engage the exposed edge of ithez folded material passing beneath said toe and;

material at a uniform distance from the edge;

is secured as, the material is fedthroughthe path f of the needle of the machine. i v 7. A sewing machine comprising a reciprocat crating with said feed dogs, a bracket secured to the work support of said machine,,a holder pive';

otally mounted on said bracket, an arm rotatably and slidably positioned in said holder,'.means to T secure said arm in adjusted position in said hold:

er, means carried by said arm to fold a seamed f material longitudinally about the seam therein;

so that the stitching and raw edges of the ma-,:'

terial adjacent the seam will be disposedbetween; an upper and lower ply formed by the materials 1 joined by theseam, said arm being adapted to! dispose the folding means in operative position in advance of said presser foot, ,and a substan-' tially inverted J-shaped; member disposed on one toe of said presser foot, the long leg of said inverted; J-shaped member being positionedtor engage the exposed edge of the folded material. and ,maintain. the same in uniform laterally spaced relationship with respectto the path or, travel of the needlewhereby stitching of the folded material at a uniform distance from theedge is seemed as the material is fed through; the path of the needle of the machine, the shortf leg of said inverted J-shaped member being posii-k means carried by said arm tov fold a seamedzma-l terial longitudinally about theiseam therein SOT;

that the stitching and raw-edges of the mate-'- rial adjacent the seam will be disposedbetweeni T an upper and lower ply formed by the materials: joined .by the seam, said arm being adapted to" dispose the-folding means in operative position in advance of said presser foot or upon move-;. mentof said holder about its pivot in inoperative. A position as desired, a spring engaging the holder;

and adapted to substantially lock it in position when said holder disposes said arm in inoperative position, and means to engage the exposed edge of thefolded material passing beneath said press-r f er foot and maintain the same in uniform lat,

erbally spaced meiationsl iip with wrespeet to eiie path o'f tramdl or" the needle whereby sfiitGlfi-ng =df the i oldeii "maiteniail =ait -a mi fiomn distanoe from the edge is secured as the'anater'i-BGI Eis fed through the path o'f the needle otthe maohine.

*9. sewling i-mao'liine comprising a =reoipmeating needle, feed dogs, a presser tootcooperatsing with said deed dings, a bra&et secured 1 to the work support of said *n radliine, =a hdlder pivvitally mounted on said bracket; a curved arm rotat- :ably and slidablypos'itioned in saidhdlder, means to secure said am r-i adj usted position in said holder, aifdlder c'arried' by said arm to fold a Jseamed =ma ter ial lon'gitudinall iy about the seam therein so-that the stitdh in-g"aniilflraw edges ef "the nraterieil adjacent the seamwi'll be 'd-ispesed between an upper and lower p'ly formed by thematerials joined by the seam, said arm being adapted te-dispose the Welding aneans inoperati-ve position 'in'iadvance of said presser f eot or 'upon move men-t er hololer 'abtrut its *pivc it 'i'n inoperative pesiti'en as desired, a spring engag'ing ho'lder arh'd adapted' to substantially lock in position when said holder-disposes said arm in mopeT-ati-Ve pos'itiGn, -a'hd meanson the presser foot to engage thG ESXPTGSGfl edge "oil ene folded material passing beneath saiid *presser hreat and mainmaterialls zicined by the seam, saliddolder havaaslnt'seatendinglengitudirrally thereofito' rewoeiye lithe raiv e'dgee :and the line io'f stitching of a se'arned1 matenia l, the *upper and lower plies exite-riding ouitwardly from the slot Ebeing positioned omer and -under the f o'lderrespedtive'ly, :sai-d folder maxi-roe of said press'er feot er =-upen moven ieut of said holder about' its pivotin 'inope-rativeiposidiom ra-s des'imedya spring engaging the holder and Itai-n the same-in uniform laterally spaced relation'ship with respect "to the paJr/h *oftrave'l 0f the needle wheieey-setenmger th'e folded mate-' trial at a uniform distance from the edge is se- -cured as the material -is fed through v thepath of the needle 0f the machine.

A sewing machine comprising a reciprocatneedle, deeddogsQa-sIottedpresser io'ot-ooopstating with said feed do gs, a br-laic'ket secured to "the work suppert'of said maohi-ne,-a hdlder pivetally moun-ted on-'saidbraoket, anarmrcta'tably and. 'slidab'ly -pesitioned in said hdlder, means to secure said arm in adiusted position-in "-said htilder. a liolder ca rried by'saidarm to fold aseamed material l-on'gitudi nali y about the seam "therein so "that the "stitching and raw edges of the material adjacent the seam'veill be disposed between 21 upper and lcwer plydormedby the materials joined 'by the seam; said am being adapted to dispose the folding "means in {operative position in advance of said *preseer foe t or upon movement'of saidholder-ab out its'p'ivot in "inoperative position as desired, "a spring engaging the holder and adapted to substantially lock it- "in "position "when holder disposes saidarm in inoperative "position, and'a substantially inverted J- shapedmember 'disposedonene toerof saidpresser foot, the long leg of said inverted :l-shaped member being positioned to engage the exposed edge of the folded material passing beneathsaid toe and maintain the-same in uniform laterally spaced relationship withrespectto the path of travel of the needle whereby. stitching of the folded material at a uniform distance from the edge is secured as the material. is fed through the path of the needle of the machine."

1'1. A sewing machine comprising a reciprocating needle, feed, dogs, a slotted presser foot, cooperating with said feeddogs," a bracket secured to the work support of said machine, a holder pivotaily mounted on said bracket, an arm rotatably and slidably positioned insaid holder, means to secure said arm in adjusted position in said holder, a folder carried by said arm to fold a seamed material longitudinally about the seam kadanted' to substantially "lock it n position when said hoi'dler disposesfsaid arm inoperative position, and a substantially inverted u shaped mem 'iher disposed en one toe efsaid presser foot, the dong-dag (if said inverted il shaped member being pesi ti-ened to engage the exposed edge of "the folded imaiteri-a-l pass'ingibeneath said toe and ina'in tain the same in unidorm laterally spa'ced relationship witl respect to the path of travel "of "the needle whereby stitching of the folded maseen-a1: ahziidorm distance from the edge is seicured as the material fed through the path of idhe'needieOf -iihe'maehine, the shortlleg of said ini netted U shaped member being positioned in the (S1 f surdaee lefthe tee en vdhi'ch said inverted J} the presse'r foot and engaging the-inner shaped member is positioned.

A sewing maohineattachment adapted'to he seoiire d to -a sewing'maclrine having a recipro can g-zneedle feed dogs and a presserjootbar,

said attachment comprising a -folder to fold a seamed material aboutthe seam thereinso that the sti'tdhing and edges or the material ad'- i iaoen t theseam will be disposed between an upsw de lower p'ly formedby the materials joined byth'e seam, and ielder having a slot extending leng itud-inally thereof to receive the raw edges sand the line oi stitching of a seamed material, the upper'and lewer plies extending outwardly Jfrom the slot being positioned over and under ielder respectively, said folder having its exit end substantially triangular in cross-section, a

h's ldttedpresser foot 'to bepositi-oned on said presser foot dear, said ielder 'to be positioned "in ad Vance :e'f said' presser foot, and a substantially -ntveiited wshaped member disposed on one toe of said' presserfoet, the. long -ieg of said inverted h :Wdhdpedmeniberbeing positioned toengage the exposededg'eof the folded-material passing bewreath said toe and maintain the same in unidormflaterally spaced relationship with respect to the path of-travelof the needle whereby stitching oi'ithe lielded n'iater ial at a uni-form distance itrom the edge is secured as the material is fed through-the-path oi? travel of the needle of the machine.

' raw edges and the line of stitching of a seamed thereinso that the stitching and raw edges of i the material adjacent theseam will be disposed between an upper and lower ply formed by the material, the upper and lower plies extending outwardly from the'slot being positioned over and under the folder respectively, said folder having its exit end substantially triangular in cross-section, 'aslotted presser foot to be positioned onsaid presser foot bar, said folderto s exit end substantially triangular in iciiosssectien,qsaid :alrm 'be'ing adapted 'to dispose ithe tdld ing'irneans in operaitive :position in adbe positioned in advance of said presser foot, and

a substantially inverted J-shaped member disposed on ,onetoe of said presser foot, the long leg of said invertedJ-shaped member being positioned to engage the exposed edge of the folded material and maintain the same in uniform laterally spaced relationship with respectrto the path of travel of the needle whereby stitching of the folded material at a uniform distance from I the edge is secured as the material is fed through the path of travel of the needle of the machine, the short leg of said inverted J-shaped member cating needle, feed dogs and a presser foot bar,

said attachment comprising a folderto fold a seamed material about the seam therein so that thestitching and raw edges of the material adjacent the seam will be disposed between an upper and lower ply formed by the materials joined ,by

v the seam, said folder having a slot extending longitudinally thereof to receive the raw edges 3 and the line of stitching of a seamed material, the upper and lower plies extending outwardly from the slot being positioned over-and under the folder respectively, said folder having its exit .end substantially triangular in cross-section, a slotted presser foot to be positioned on said presser foot bar, means to adjustably position said folder in advance of said presser foot and a substantially inverted J -shaped member disposed on one toe of said presser foot, the long leg of said inverted J-shaped member being positioned to engage the exposed edge of the folded material passing beneath said presser foot and maintain the same in uniform laterally spaced relationship with respect to the path of travel of the'needle whereby stitching of the folded material at a uniform distance from the edge is secured as the material is fed through the path of travel of the needle of .the machine.

15. A sewing machine attachment adapted to be securedtoa sewing machine-having a, reciprocating needle, feed dogs and a presser foot bar, said attachment comprising a bracket to be secured to the work support of said machine, a

holder pivotally mounted on said bracket, an arm 1 adjustably secured in said holder, a folder carried by said arm to fold a seamed material longitudinally about the seam therein so that the stitching and raw edges of the material adjacent the seam will be disposed between an upper and .lower ply formed bythe materials joined by the seam, said folder having a slot extending longi- .material is fed through of the machine.

qtudinally-thereofto receive the rawedges and the g r r line of stitching of a seamed material, the upper 7 and lower plies extending outwardly from the slot'. being positioned over and under the folder respec I e tively, said folder having its exit end substan-v tially triangular in cross-section, a presser, foot,

. adapted to be positioned on said presser foot bar,

vsaid arm being adapted to. position, the folding" meansgin operative position in advance of the presser foot, and means on saidpresser foot to.- engage theexposed edge ofv the folded materialv passing beneath said presser foot and maintain the same in uniform laterallyspacedrelationship' with respect to the path of travel of the needle whereby stitching of the folded material at a.

uniform distance from the edge is secured as the the machine.

. '16. A sewing machine attachment adapted to be secured to a sewing machine having a 'reclpro eating needle, feed dogs and a presser foot bar,v

said attachment comprising a bracket to be secured to the work support of-said'machine, a. v holder pivotally mountedon said bracket, a

curved armrotatably and slidably positionedin said holder,'means to secure said arm in adjusted position in said'holder, a folder carried by said arm to fold a seamed material longitudinally H t about the seam therein so that the stitching and raw edges of the'material adjacent the seam will be disposed between an upper and lower plyformed by the materials joined by the seam, said folder having a slot extending longitudinally thereof to receive the rawedges and the lineeof j I stitching of a seamedfmaterial, the upper and lowerpliesextending outwardly from the slot I being positioned over and under the folder.re-

spectively, said folder having its exit end substantially triangular in cross-section,- a presser foot adapted to be positioned on said presser foot bar, said arm being adapted to position the foldingmeans in operative position in advance of the presser foot or upon movement of said holder. about its pivot in inoperative position, a spring engaging said holder and adapted'to substantially lock it in position when said folder is in inoperative position, and means on said presser foot to engage the exposed edge of the folded material passing beneath said presser foot and maintain the same inuniform laterally spaced relationship with respect to the path of travel of the needle whereby stitching of the folded material at a uniform distance from the edge is secured as the material is fed through the path of the needle CHARLES SEAMANQ the path of the needle 01! 

